Clearmax NB-10L Ultra High Capacity Li-ion Battery For Canon PowerShot G1X, PowerShot G15, PowerShot SX40 HS, PowerShot SX50 HS (Canon NB-10L Replacement) Replaces Canon NB-10L Battery for a Fraction of the Price Ultra High Power, No Memory Effect. Quality, Functionality, and Construction of this Battery is Excellent. Ultra-High Capacity: 1200mAh Made For Canon PowerShot SX-40, PowerShot SX50 HS, PowerShot G1X, PowerShot G15 1 Year International Warranty